Skip resource growth checks in upgrade-rollback jobs
Skip resource growth checks in upgrade-rollback jobs

In the case where a rollback doesn't complete the completion
time is nil, and a panic occurs. This will check for that
and mark the test as flaked.

https://issues.redhat.com/browse/SDN-3505

Signed-off-by: Jamo Luhrsen <b8481864ff1d75a4405f03eecd3be80b6cea8c91@gmail.com>

mfojtik/origin,mfojtik/origin,bparees/origin,mahak/origin,deads2k/origin,soltysh/origin,akram/origin,soltysh/origin,openshift/origin,deads2k/origin,bparees/origin,mahak/origin,openshift/origin,deads2k/origin,akram/origin,openshift/origin,mfojtik/origin,mahak/origin,akram/origin,bparees/origin,soltysh/origin